Middle America visits the show and the gang falls in love with his stupidity. They even let him take control of Wonder Showzen. The result is a big stinky horse apple.
| Name | Type | Role | |
|---|---|---|---|
| John Lee | Writer | ||
| Vernon Chatman | Writer | ||
| Penny Henzel | Guest Star | ||
| David Cross | Guest Star | ||
| Alex Kilgore | Guest Star | ||
| Tony Oliver | Guest Star | ||
| Heather Lawless | Guest Star | ||
| Jasmine Torre | Guest Star | ||
| Trevor Heins | Guest Star | ||
| Ptolemy Slocum | Guest Star | ||
| Jennifer Araki | Guest Star | ||
| KC Roemer | Guest Star | ||
| Juliet DePaula | Guest Star | ||
| Peyton Ray | Guest Star | ||
| Jon Glaser | Guest Star | ||
| Chris Anderson | Guest Star | ||
| Timmy Ray | Guest Star | ||
| Judah Friedlander | Guest Star | ||
| Tyree King | Guest Star | ||
| Nicholas Aponte | Guest Star | ||
| Charles Russell Drew | Guest Star | ||
| Philomena Loescher | Guest Star | ||
| Barbara Ann Davidson | Guest Star | ||
| Frances Hisgen | Guest Star | ||
| Michael Birch | Guest Star | ||
| Amy Poehler | Guest Star | ||
| Vernon Chatman | Director | ||
| John Lee | Director |